The 500W module and either of the 250W powered modules can competently serve as power supply for two of the unpowered 250W modules.

This makes a perfect setup for a pair of three way active mains + sub. One 250W powered module serves for power supply for all three 250W modules in each main. 750W each main + 500W sub... plenty of power for whatever you want... plenty of power for a large bass driver in each main (hell, enough for multiples really).

These things have soft start, muting, thermal protection, diagnostic (LED) outputs, etc. They are ready to go... makes for a no hassle active power solution if you'd rather concentrate on crossover, driver integration, and enclosure design.

Great fullrange performance. Extremely cool running. These are highly respected. Again, please email for more details.